Which is the largest forum you can think off. The criteria would be whoever gets the forum name which has most posts, users, threads. Find bigger than the biggest I know. Also no adult forums would be considered and allowed as entries.
Gaia Online http://www.gaiaonline.com/forum/ Who is Online? - 59793 users. (51547 visible, 3164 hidden, 5082 guests). Gaia has 1,615,313,043 articles posted with 18,806,480 registered users. Most users ever online was 123,381 on Wed Apr 02, 2008 1:44 am http://www.big-boards.com/ Forum software: phpBB Number of posts: 1614933307 Number of members: 18799642 Post per member ratio: 86 Posts last week: 5750637 Alexa ranking: 1297 http://www.websiteoutlook.com/www.gaiaonline.com gaiaonline.com Estimated Worth $2.98 Million USD Daily Pageview 1361386 Daily Ads Revenue $4086.61
Bingo Not quite They have profile where you can trade for adding frills to your profile only when you make more and more posts and invite people.